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| author | Eric Dumazet <edumazet@google.com> | 2012-04-29 09:08:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-01 13:40:48 -0400 |
| commit | 116a0fc31c6c9b8fc821be5a96e5bf0b43260131 (patch) | |
| tree | f4b8561387b34fd4eec9b8a2d599937b2375d741 /net/sched | |
| parent | e072b3fad5f3915102c94628b4971f52ff99dd05 (diff) | |
| download | linux-stable-116a0fc31c6c9b8fc821be5a96e5bf0b43260131.tar.gz linux-stable-116a0fc31c6c9b8fc821be5a96e5bf0b43260131.tar.bz2 linux-stable-116a0fc31c6c9b8fc821be5a96e5bf0b43260131.zip | |
netem: fix possible skb leak
skb_checksum_help(skb) can return an error, we must free skb in this
case. qdisc_drop(skb, sch) can also be feeded with a NULL skb (if
skb_unshare() failed), so lets use this generic helper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_netem.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 5da548fa7ae9..ebd22966f748 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -408,10 +408,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch) if (q->corrupt && q->corrupt >= get_crandom(&q->corrupt_cor)) { if (!(skb = skb_unshare(skb, GFP_ATOMIC)) || (skb->ip_summed == CHECKSUM_PARTIAL && - skb_checksum_help(skb))) { - sch->qstats.drops++; - return NET_XMIT_DROP; - } + skb_checksum_help(skb))) + return qdisc_drop(skb, sch); skb->data[net_random() % skb_headlen(skb)] ^= 1<<(net_random() % 8); } |